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Added Vortex SOC

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This commit is contained in:
felsabbagh3
2020-03-08 15:24:21 -07:00
parent b5b04a7070
commit a539630a0a
4 changed files with 696 additions and 4 deletions
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19
rtl/Makefile
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@@ -3,9 +3,11 @@ all: RUNFILE
INCLUDE=-I. -Ishared_memory -Icache -IVX_cache -IVX_cache/interfaces -Iinterfaces/ -Ipipe_regs/ -Icompat/ -Isimulate
FILE=Vortex.v
SINGLE_CORE=Vortex.v
MULTI_CORE=Vortex_SOC.v
EXE=--exe ./simulate/test_bench.cpp
MULTI_EXE=--exe ./simulate/multi_test_bench.cpp
COMP=--compiler gcc
@@ -24,18 +26,24 @@ DEB=--trace --prof-cfuncs -DVL_DEBUG=1
MAKECPP=(cd obj_dir && make -j -f VVortex.mk OPT='-DVL_DEBUG' VL_DEBUG=1 DVL_DEBUG=1)
MAKEMULTICPP=(cd obj_dir && make -j -f VVortex_SOC.mk OPT='-DVL_DEBUG' VL_DEBUG=1 DVL_DEBUG=1)
# -LDFLAGS '-lsystemc'
VERILATOR:
echo "#define VCD_OFF" > simulate/tb_debug.h
verilator $(COMP) -cc $(FILE) $(INCLUDE) $(EXE) $(LIB) $(CF) $(LIGHTW)
verilator $(COMP) -cc $(SINGLE_CORE) $(INCLUDE) $(EXE) $(LIB) $(CF) $(LIGHTW)
VERILATORnoWarnings:
echo "#define VCD_OFF" > simulate/tb_debug.h
verilator $(COMP) -cc $(FILE) $(INCLUDE) $(EXE) $(LIB) $(CF) $(WNO) $(DEB)
verilator $(COMP) -cc $(SINGLE_CORE) $(INCLUDE) $(EXE) $(LIB) $(CF) $(WNO) $(DEB)
VERILATORMULTInoWarnings:
echo "#define VCD_OFF" > simulate/tb_debug.h
verilator $(COMP) -cc $(MULTI_CORE) $(INCLUDE) $(MULTI_EXE) $(LIB) $(CF) $(WNO) $(DEB)
compdebug:
echo "#define VCD_OUTPUT" > simulate/tb_debug.h
verilator_bin_dbg $(COMP) -cc $(FILE) $(INCLUDE) $(EXE) $(LIB) -CFLAGS '-std=c++11 -DVL_DEBUG' $(WNO) $(DEB)
verilator_bin_dbg $(COMP) -cc $(SINGLE_CORE) $(INCLUDE) $(EXE) $(LIB) -CFLAGS '-std=c++11 -DVL_DEBUG' $(WNO) $(DEB)
RUNFILE: VERILATOR
$(MAKECPP)
@@ -46,6 +54,9 @@ debug: compdebug
w: VERILATORnoWarnings
$(MAKECPP)
multicore: VERILATORMULTInoWarnings
$(MAKEMULTICPP)
run: w
(cd obj_dir && ./VVortex)

88
rtl/Vortex_SOC.v Normal file
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@@ -0,0 +1,88 @@
`include "VX_define.v"
`include "VX_cache_config.v"
module Vortex_SOC (
input wire clk,
input wire reset,
input wire[31:0] icache_response_instruction,
output wire[31:0] icache_request_pc_address,
// IO
output wire io_valid,
output wire[31:0] io_data,
// DRAM Dcache Req
output wire dram_req,
output wire dram_req_write,
output wire dram_req_read,
output wire [31:0] dram_req_addr,
output wire [31:0] dram_req_size,
output wire [31:0] dram_req_data[`DBANK_LINE_SIZE_RNG],
output wire [31:0] dram_expected_lat,
// DRAM Dcache Res
output wire dram_fill_accept,
input wire dram_fill_rsp,
input wire [31:0] dram_fill_rsp_addr,
input wire [31:0] dram_fill_rsp_data[`DBANK_LINE_SIZE_RNG],
// DRAM Icache Req
output wire I_dram_req,
output wire I_dram_req_write,
output wire I_dram_req_read,
output wire [31:0] I_dram_req_addr,
output wire [31:0] I_dram_req_size,
output wire [31:0] I_dram_req_data[`DBANK_LINE_SIZE_RNG],
output wire [31:0] I_dram_expected_lat,
// DRAM Icache Res
output wire I_dram_fill_accept,
input wire I_dram_fill_rsp,
input wire [31:0] I_dram_fill_rsp_addr,
input wire [31:0] I_dram_fill_rsp_data[`DBANK_LINE_SIZE_RNG],
output wire out_ebreak
);
Vortex vortex_core(
.clk (clk),
.reset (reset),
.icache_response_instruction(icache_response_instruction),
.icache_request_pc_address (icache_request_pc_address),
.io_valid (io_valid),
.io_data (io_data),
.dram_req (dram_req),
.dram_req_write (dram_req_write),
.dram_req_read (dram_req_read),
.dram_req_addr (dram_req_addr),
.dram_req_size (dram_req_size),
.dram_req_data (dram_req_data),
.dram_expected_lat (dram_expected_lat),
.dram_fill_accept (dram_fill_accept),
.dram_fill_rsp (dram_fill_rsp),
.dram_fill_rsp_addr (dram_fill_rsp_addr),
.dram_fill_rsp_data (dram_fill_rsp_data),
.I_dram_req (I_dram_req),
.I_dram_req_write (I_dram_req_write),
.I_dram_req_read (I_dram_req_read),
.I_dram_req_addr (I_dram_req_addr),
.I_dram_req_size (I_dram_req_size),
.I_dram_req_data (I_dram_req_data),
.I_dram_expected_lat (I_dram_expected_lat),
.I_dram_fill_accept (I_dram_fill_accept),
.I_dram_fill_rsp (I_dram_fill_rsp),
.I_dram_fill_rsp_addr (I_dram_fill_rsp_addr),
.I_dram_fill_rsp_data (I_dram_fill_rsp_data),
.out_ebreak (out_ebreak)
);
endmodule

112
rtl/simulate/multi_test_bench.cpp Normal file
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@@ -0,0 +1,112 @@
#include "multi_test_bench.h"
#define NUM_TESTS 46
int main(int argc, char **argv)
{
// Verilated::debug(1);
Verilated::commandArgs(argc, argv);
Verilated::traceEverOn(true);
// #define ALL_TESTS
#ifdef ALL_TESTS
bool passed = true;
std::string tests[NUM_TESTS] = {
"../../emulator/riscv_tests/rv32ui-p-add.hex",
"../../emulator/riscv_tests/rv32ui-p-addi.hex",
"../../emulator/riscv_tests/rv32ui-p-and.hex",
"../../emulator/riscv_tests/rv32ui-p-andi.hex",
"../../emulator/riscv_tests/rv32ui-p-auipc.hex",
"../../emulator/riscv_tests/rv32ui-p-beq.hex",
"../../emulator/riscv_tests/rv32ui-p-bge.hex",
"../../emulator/riscv_tests/rv32ui-p-bgeu.hex",
"../../emulator/riscv_tests/rv32ui-p-blt.hex",
"../../emulator/riscv_tests/rv32ui-p-bltu.hex",
"../../emulator/riscv_tests/rv32ui-p-bne.hex",
"../../emulator/riscv_tests/rv32ui-p-jal.hex",
"../../emulator/riscv_tests/rv32ui-p-jalr.hex",
"../../emulator/riscv_tests/rv32ui-p-lw.hex",
"../../emulator/riscv_tests/rv32ui-p-lb.hex",
"../../emulator/riscv_tests/rv32ui-p-lbu.hex",
"../../emulator/riscv_tests/rv32ui-p-lh.hex",
"../../emulator/riscv_tests/rv32ui-p-lhu.hex",
"../../emulator/riscv_tests/rv32ui-p-lui.hex",
"../../emulator/riscv_tests/rv32ui-p-or.hex",
"../../emulator/riscv_tests/rv32ui-p-ori.hex",
"../../emulator/riscv_tests/rv32ui-p-sb.hex",
"../../emulator/riscv_tests/rv32ui-p-sh.hex",
"../../emulator/riscv_tests/rv32ui-p-simple.hex",
"../../emulator/riscv_tests/rv32ui-p-sll.hex",
"../../emulator/riscv_tests/rv32ui-p-slli.hex",
"../../emulator/riscv_tests/rv32ui-p-slt.hex",
"../../emulator/riscv_tests/rv32ui-p-slti.hex",
"../../emulator/riscv_tests/rv32ui-p-sltiu.hex",
"../../emulator/riscv_tests/rv32ui-p-sltu.hex",
"../../emulator/riscv_tests/rv32ui-p-sra.hex",
"../../emulator/riscv_tests/rv32ui-p-srai.hex",
"../../emulator/riscv_tests/rv32ui-p-srl.hex",
"../../emulator/riscv_tests/rv32ui-p-srli.hex",
"../../emulator/riscv_tests/rv32ui-p-sub.hex",
"../../emulator/riscv_tests/rv32ui-p-sw.hex",
"../../emulator/riscv_tests/rv32ui-p-xor.hex",
"../../emulator/riscv_tests/rv32ui-p-xori.hex",
"../../emulator/riscv_tests/rv32um-p-div.hex",
"../../emulator/riscv_tests/rv32um-p-divu.hex",
"../../emulator/riscv_tests/rv32um-p-mul.hex",
"../../emulator/riscv_tests/rv32um-p-mulh.hex",
"../../emulator/riscv_tests/rv32um-p-mulhsu.hex",
"../../emulator/riscv_tests/rv32um-p-mulhu.hex",
"../../emulator/riscv_tests/rv32um-p-rem.hex",
"../../emulator/riscv_tests/rv32um-p-remu.hex"
};
for (std::string s : tests) {
Vortex v;
std::cerr << DEFAULT << "\n---------------------------------------\n";
std::cerr << s << std::endl;
bool curr = v.simulate(s);
if ( curr) std::cerr << GREEN << "Test Passed: " << s << std::endl;
if (!curr) std::cerr << RED << "Test Failed: " << s << std::endl;
std::cerr << DEFAULT;
passed = passed && curr;
}
std::cerr << DEFAULT << "\n***************************************\n";
if( passed) std::cerr << DEFAULT << "PASSED ALL TESTS\n";
if(!passed) std::cerr << DEFAULT << "Failed one or more tests\n";
return !passed;
#else
char testing[] = "../../runtime/mains/simple/vx_simple_main.hex";
// char testing[] = "../../emulator/riscv_tests/rv32ui-p-lw.hex";
// char testing[] = "../../emulator/riscv_tests/rv32ui-p-sw.hex";
Vortex v;
// const char *testing;
// if (argc >= 2) {
// testing = argv[1];
// } else {
// testing = "../../kernel/vortex_test.hex";
// }
std::cerr << testing << std::endl;
bool curr = v.simulate(testing);
if ( curr) std::cerr << GREEN << "Test Passed: " << testing << std::endl;
if (!curr) std::cerr << RED << "Test Failed: " << testing << std::endl;
return !curr;
#endif
}

481
rtl/simulate/multi_test_bench.h Normal file
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@@ -0,0 +1,481 @@
// C++ libraries
#include <utility>
#include <iostream>
#include <map>
#include <iterator>
#include <iomanip>
#include <fstream>
#include <unistd.h>
#include <vector>
#include <math.h>
#include <algorithm>
#include "VX_define.h"
#include "ram.h"
#include "VVortex_SOC.h"
#include "verilated.h"
#include "tb_debug.h"
#ifdef VCD_OUTPUT
#include <verilated_vcd_c.h>
#endif
unsigned long time_stamp = 0;
double sc_time_stamp()
{
return time_stamp / 1000.0;
}
typedef struct
{
int cycles_left;
int data_length;
unsigned base_addr;
unsigned * data;
} dram_req_t;
class Vortex
{
public:
Vortex();
~Vortex();
bool simulate(std::string);
private:
void ProcessFile(void);
void print_stats(bool = true);
bool ibus_driver();
bool dbus_driver();
void io_handler();
RAM ram;
VVortex_SOC * vortex;
unsigned start_pc;
bool refill_d;
unsigned refill_addr_d;
bool refill_i;
unsigned refill_addr_i;
long int curr_cycle;
bool stop;
bool unit_test;
std::string instruction_file_name;
std::ofstream results;
int stats_static_inst;
int stats_dynamic_inst;
int stats_total_cycles;
int stats_fwd_stalls;
int stats_branch_stalls;
int debug_state;
int ibus_state;
int dbus_state;
int debug_return;
int debug_wait_num;
int debug_inst_num;
int debug_end_wait;
int debug_debugAddr;
double stats_sim_time;
std::vector<dram_req_t> dram_req_vec;
std::vector<dram_req_t> I_dram_req_vec;
#ifdef VCD_OUTPUT
VerilatedVcdC *m_trace;
#endif
};
Vortex::Vortex() : start_pc(0), curr_cycle(0), stop(true), unit_test(true), stats_static_inst(0), stats_dynamic_inst(-1),
stats_total_cycles(0), stats_fwd_stalls(0), stats_branch_stalls(0),
debug_state(0), ibus_state(0), dbus_state(0), debug_return(0),
debug_wait_num(0), debug_inst_num(0), debug_end_wait(0), debug_debugAddr(0)
{
this->vortex = new VVortex_SOC;
#ifdef VCD_OUTPUT
this->m_trace = new VerilatedVcdC;
this->vortex->trace(m_trace, 99);
this->m_trace->open("trace.vcd");
#endif
this->results.open("../results.txt");
}
Vortex::~Vortex()
{
#ifdef VCD_OUTPUT
m_trace->close();
#endif
this->results.close();
delete this->vortex;
}
void Vortex::ProcessFile(void)
{
loadHexImpl(this->instruction_file_name.c_str(), &this->ram);
}
void Vortex::print_stats(bool cycle_test)
{
if (cycle_test)
{
this->results << std::left;
// this->results << "# Static Instructions:\t" << std::dec << this->stats_static_inst << std::endl;
this->results << std::setw(24) << "# Dynamic Instructions:" << std::dec << this->stats_dynamic_inst << std::endl;
this->results << std::setw(24) << "# of total cycles:" << std::dec << this->stats_total_cycles << std::endl;
this->results << std::setw(24) << "# of forwarding stalls:" << std::dec << this->stats_fwd_stalls << std::endl;
this->results << std::setw(24) << "# of branch stalls:" << std::dec << this->stats_branch_stalls << std::endl;
this->results << std::setw(24) << "# CPI:" << std::dec << (double) this->stats_total_cycles / (double) this->stats_dynamic_inst << std::endl;
this->results << std::setw(24) << "# time to simulate: " << std::dec << this->stats_sim_time << " milliseconds" << std::endl;
}
else
{
this->results << std::left;
this->results << std::setw(24) << "# of total cycles:" << std::dec << this->stats_total_cycles << std::endl;
this->results << std::setw(24) << "# time to simulate: " << std::dec << this->stats_sim_time << " milliseconds" << std::endl;
}
uint32_t status;
ram.getWord(0, &status);
if (this->unit_test)
{
if (status == 1)
{
this->results << std::setw(24) << "# GRADE:" << "PASSING\n";
} else
{
this->results << std::setw(24) << "# GRADE:" << "Failed on test: " << status << "\n";
}
}
else
{
this->results << std::setw(24) << "# GRADE:" << "N/A [NOT A UNIT TEST]\n";
}
this->stats_static_inst = 0;
this->stats_dynamic_inst = -1;
this->stats_total_cycles = 0;
this->stats_fwd_stalls = 0;
this->stats_branch_stalls = 0;
}
bool Vortex::ibus_driver()
{
// Iterate through each element, and get pop index
int dequeue_index = -1;
bool dequeue_valid = false;
for (int i = 0; i < this->I_dram_req_vec.size(); i++)
{
if (this->I_dram_req_vec[i].cycles_left > 0)
{
this->I_dram_req_vec[i].cycles_left -= 1;
}
if ((this->I_dram_req_vec[i].cycles_left == 0) && (!dequeue_valid))
{
dequeue_index = i;
dequeue_valid = true;
}
}
if (vortex->I_dram_req)
{
// std::cout << "Icache Dram Request received!\n";
if (vortex->I_dram_req_read)
{
// std::cout << "Icache Dram Request is read!\n";
// Need to add an element
dram_req_t dram_req;
dram_req.cycles_left = vortex->I_dram_expected_lat;
dram_req.data_length = vortex->I_dram_req_size / 4;
dram_req.base_addr = vortex->I_dram_req_addr;
dram_req.data = (unsigned *) malloc(dram_req.data_length * sizeof(unsigned));
for (int i = 0; i < dram_req.data_length; i++)
{
unsigned curr_addr = dram_req.base_addr + (i*4);
unsigned data_rd;
ram.getWord(curr_addr, &data_rd);
dram_req.data[i] = data_rd;
}
// std::cout << "Fill Req -> Addr: " << std::hex << dram_req.base_addr << std::dec << "\n";
this->I_dram_req_vec.push_back(dram_req);
}
if (vortex->I_dram_req_write)
{
unsigned base_addr = vortex->I_dram_req_addr;
unsigned data_length = vortex->I_dram_req_size / 4;
for (int i = 0; i < data_length; i++)
{
unsigned curr_addr = base_addr + (i*4);
unsigned data_wr = vortex->I_dram_req_data[i];
ram.writeWord(curr_addr, &data_wr);
}
}
}
if (vortex->I_dram_fill_accept && dequeue_valid)
{
// std::cout << "Icache Dram Response Sending...!\n";
vortex->I_dram_fill_rsp = 1;
vortex->I_dram_fill_rsp_addr = this->I_dram_req_vec[dequeue_index].base_addr;
// std::cout << "Fill Rsp -> Addr: " << std::hex << (this->I_dram_req_vec[dequeue_index].base_addr) << std::dec << "\n";
for (int i = 0; i < this->I_dram_req_vec[dequeue_index].data_length; i++)
{
vortex->I_dram_fill_rsp_data[i] = this->I_dram_req_vec[dequeue_index].data[i];
}
free(this->I_dram_req_vec[dequeue_index].data);
this->I_dram_req_vec.erase(this->I_dram_req_vec.begin() + dequeue_index);
}
else
{
vortex->I_dram_fill_rsp = 0;
vortex->I_dram_fill_rsp_addr = 0;
}
return false;
}
void Vortex::io_handler()
{
// std::cout << "Checking\n";
if (vortex->io_valid)
{
uint32_t data_write = (uint32_t) vortex->io_data;
// std::cout << "IO VALID!\n";
char c = (char) data_write;
std::cerr << c;
// std::cout << c;
std::cout << std::flush;
}
}
bool Vortex::dbus_driver()
{
// Iterate through each element, and get pop index
int dequeue_index = -1;
bool dequeue_valid = false;
for (int i = 0; i < this->dram_req_vec.size(); i++)
{
if (this->dram_req_vec[i].cycles_left > 0)
{
this->dram_req_vec[i].cycles_left -= 1;
}
if ((this->dram_req_vec[i].cycles_left == 0) && (!dequeue_valid))
{
dequeue_index = i;
dequeue_valid = true;
}
}
if (vortex->dram_req)
{
if (vortex->dram_req_read)
{
// Need to add an element
dram_req_t dram_req;
dram_req.cycles_left = vortex->dram_expected_lat;
dram_req.data_length = vortex->dram_req_size / 4;
dram_req.base_addr = vortex->dram_req_addr;
dram_req.data = (unsigned *) malloc(dram_req.data_length * sizeof(unsigned));
for (int i = 0; i < dram_req.data_length; i++)
{
unsigned curr_addr = dram_req.base_addr + (i*4);
unsigned data_rd;
ram.getWord(curr_addr, &data_rd);
dram_req.data[i] = data_rd;
}
// std::cout << "Fill Req -> Addr: " << std::hex << dram_req.base_addr << std::dec << "\n";
this->dram_req_vec.push_back(dram_req);
}
if (vortex->dram_req_write)
{
unsigned base_addr = vortex->dram_req_addr;
unsigned data_length = vortex->dram_req_size / 4;
for (int i = 0; i < data_length; i++)
{
unsigned curr_addr = base_addr + (i*4);
unsigned data_wr = vortex->dram_req_data[i];
ram.writeWord(curr_addr, &data_wr);
}
}
}
if (vortex->dram_fill_accept && dequeue_valid)
{
vortex->dram_fill_rsp = 1;
vortex->dram_fill_rsp_addr = this->dram_req_vec[dequeue_index].base_addr;
// std::cout << "Fill Rsp -> Addr: " << std::hex << (this->dram_req_vec[dequeue_index].base_addr) << std::dec << "\n";
for (int i = 0; i < this->dram_req_vec[dequeue_index].data_length; i++)
{
vortex->dram_fill_rsp_data[i] = this->dram_req_vec[dequeue_index].data[i];
}
free(this->dram_req_vec[dequeue_index].data);
this->dram_req_vec.erase(this->dram_req_vec.begin() + dequeue_index);
}
else
{
vortex->dram_fill_rsp = 0;
vortex->dram_fill_rsp_addr = 0;
}
return false;
}
bool Vortex::simulate(std::string file_to_simulate)
{
this->instruction_file_name = file_to_simulate;
// this->results << "\n****************\t" << file_to_simulate << "\t****************\n";
this->ProcessFile();
// auto start_time = std::chrono::high_resolution_clock::now();
static bool stop = false;
static int counter = 0;
counter = 0;
stop = false;
// auto start_time = clock();
// vortex->reset = 1;
// vortex->reset = 0;
unsigned curr_inst;
unsigned new_PC;
// while (this->stop && (!(stop && (counter > 5))))
// {
// // std::cout << "************* Cycle: " << cycle << "\n";
// bool istop = ibus_driver();
// bool dstop = !dbus_driver();
// vortex->clk = 1;
// vortex->eval();
// vortex->clk = 0;
// vortex->eval();
// stop = istop && dstop;
// if (stop)
// {
// counter++;
// } else
// {
// counter = 0;
// }
// cycle++;
// }
bool istop;
bool dstop;
bool cont = false;
// for (int i = 0; i < 500; i++)
vortex->reset = 1;
vortex->clk = 0;
vortex->eval();
// m_trace->dump(10);
vortex->reset = 1;
vortex->clk = 1;
vortex->eval();
// m_trace->dump(11);
vortex->reset = 0;
vortex->clk = 0;
// unsigned cycles;
counter = 0;
this->stats_total_cycles = 12;
while (this->stop && ((counter < 5)))
// while (this->stats_total_cycles < 10)
{
// printf("-------------------------\n");
// std::cout << "Counter: " << counter << "\n";
// if ((this->stats_total_cycles) % 5000 == 0) std::cout << "************* Cycle: " << (this->stats_total_cycles) << "\n";
// dstop = !dbus_driver();
#ifdef VCD_OUTPUT
m_trace->dump(2*this->stats_total_cycles);
#endif
vortex->clk = 1;
vortex->eval();
istop = ibus_driver();
dstop = !dbus_driver();
io_handler();
#ifdef VCD_OUTPUT
m_trace->dump((2*this->stats_total_cycles)+1);
#endif
vortex->clk = 0;
vortex->eval();
// stop = istop && dstop;
stop = vortex->out_ebreak;
if (stop || cont)
// if (istop)
{
cont = true;
counter++;
} else
{
counter = 0;
}
++time_stamp;
++stats_total_cycles;
}
std::cerr << "New Total Cycles: " << (this->stats_total_cycles) << "\n";
int status = 0;
// int status = (unsigned int) vortex->Vortex_SOC__DOT__vx_back_end__DOT__VX_wb__DOT__last_data_wb & 0xf;
// std::cout << "Last wb: " << std::hex << ((unsigned int) vortex->Vortex__DOT__vx_back_end__DOT__VX_wb__DOT__last_data_wb) << "\n";
// std::cout << "Something: " << result << '\n';
// uint32_t status;
// ram.getWord(0, &status);
this->print_stats();
return (status == 1);
// return (1 == 1);
}